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NI 9212 Calibration Procedure

13. Loosen the captive screws and remove the top cover from the NI CAL-9212.
14. Disconnect the calibrator from the NI CAL-9212.
15. Short the TC+ and TC- terminals on the NI CAL-9212 together.
16. Reinstall the top cover on the NI CAL-9212.
17. Acquire and average samples.

a.

Create and configure an AI voltage channel on the NI 9212 according to Table 2.

b.

Configure the AI voltage channel timing according to Table 3.

c.

Start the task.

d.

Average the readings.

e.

Clear the task.

18. Compare the average to the limits in Table 5.

Note

The test limits listed in Table 5 are derived using the values in Table 11.

19. Repeat steps 17 through 18 for each ADC timing mode on the NI 9212.
20. Remove the NI CAL-9212 from the NI 9212.
21. Loosen the captive screws and remove the top cover from the NI CAL-9212.
22. Disconnect the short from the NI CAL-9212.

CJC Verification

Complete the following procedure to determine the As-Found status of the NI 9212.
1.

Loosen the captive screws and remove the top cover from the NI CAL-9212.

2.

Connect the calibrator to the NI CAL-9212, as shown in Figure 4.

Table 5.  

NI 9212 Voltage Verification Test Limits for Zero Test Points

ADC Timing 

Mode

Range (mV)

Test Point

1-Year Limits

Min

Max

Location

Value 

(mV)

Lower 

Limit (mV)

Upper 

Limit (mV)

High 

Resolution

-78.125

78.125

Zero

0

-0.0051

0.0051

Best 50/60 Hz 

Rejection

-0.0052

0.0052

High Speed

-0.0056

0.0056

Summary of Contents for 9212

Page 1: ...libration Procedure on ni com manuals for instructions on calibrating the NI TB 9212 Contents Software 2 Documentation 2 Test Equipment 3 Connecting the NI 9212 4 Test Conditions 5 Initial Setup 5 Ver...

Page 2: ...install with the software NI cDAQ 9174 9178 Quick Start NI DAQmx installation and hardware setup NI 9212 with NI TB 9212 Getting Started Guide NI 9212 with NI TB 9212 specific information NI 9212 wit...

Page 3: ...justment A high precision voltage source with an accuracy of 70 ppm when sourcing up to 50 A Fluke 5522A CJC Verification A high precision resistance source with 2 wire compensation and an accuracy of...

Page 4: ...ter than 10 VDC to the NI CAL 9212 Figure 1 NI CAL 9212 Pinout Connect the NI CAL 9212 to the NI 9212 front connector as shown in Figure 2 Tighten the two jackscrews on the NI CAL 9212 to hold it secu...

Page 5: ...t for information about how to install the software and hardware and how to configure the device in Measurement Automation Explorer MAX Complete the following steps to set up the NI 9212 1 Install NI...

Page 6: ...e Channel Verification Connections 3 Reinstall the top cover on the NI CAL 9212 4 Connect the NI CAL 9212 to the NI 9212 as shown in Figure 2 5 On the Fluke 5522A calibrator lock the voltage range to...

Page 7: ...el Timing Configuration ADC Timing Mode Sample Mode Samples to Read Rate S s Timeout s High Resolution Finite 20 1 8 30 Best 50 Hz Rejection 80 7 1 Best 60 Hz Rejection 100 8 3 High Speed 1 000 95 Tab...

Page 8: ...erived using the values in Table 11 19 Repeat steps 17 through 18 for each ADC timing mode on the NI 9212 20 Remove the NI CAL 9212 from the NI 9212 21 Loosen the captive screws and remove the top cov...

Page 9: ...9 Acquire and average samples a Create and configure an AI voltage channel on the NI 9212 according to Table 6 b Configure the AI voltage channel timing according to Table 7 Table 6 NI 9212 CJC Chann...

Page 10: ...9212 17 Disconnect the calibrator from the NI CAL 9212 18 Repeat steps 2 through 17 for the other CJC channel on the NI 9212 Note The test limits in Table 8 are derived using the values in Tables 6 an...

Page 11: ...ll the Get NI 9212 Calibration Adjustment Points function and set the physical channel according to Table 9 to obtain an array of recommended calibration voltages for the NI 9212 c On the Fluke 5522A...

Page 12: ...quire the adjustment coefficient a On the digital multimeter set the range to 10 V b On the digital multimeter set the input resistance to greater than 10 G a Take five digital multimeter readings b A...

Page 13: ...Set the calibrator to a reference value determined by the array of adjustment points f Set the calibrator to Operate mode OPR g Wait at least 15 seconds for the NI 9212 to settle before proceeding to...

Page 14: ...eturning your device to NI Refer to Worldwide Support and Services for assistance in returning the device to NI Accuracy Under Calibration Conditions The values in the following table are based on cal...

Page 15: ...protection for electromagnetic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com certification If your product supports calibration you can obtain the cal...

Page 16: ...an find information about end user license agreements EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal export compl...

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